U.S. government debt yieldsrose on Thursday after core inflation exceeded analysts’ estimates, signaling that the economy is performing better than previously feared.

The inflation report seemed to strike a delicate balance on Wall Street: Firming expectations about the domestic economy without compromising theFederal Reserve’s plans to lower interest rates next week.

Treasury Yields Rise

Government bond yields rose across the board Thursday, extending their September rally. The benchmark 10-year Treasury note peaked at 1.80%, the highest since Aug. 3, according to CNBC data. The yield was up around 5 basis points at the time of writing at 1.782%.

U.S. 10-year Treasury yield extends September bounce. | Chart: CNBC

The yield on the 2-year Treasury note reached a high of 1.73%. It was last spotted just below peak levels.

U.S. 3o-year Treasury notes saw their yield rise by about 5 basis points to 2.261%.

Mnuchin: Treasury “Seriously Considering” 50-Year Bonds

The U.S. Treasury Department has been mulling the possibility of issuing 50-year bonds, suggesting demand for such obligations would be high. | Image: Shutterstock

Treasury Secretary Steven Mnuchin said on Thursday that his department is “seriously considering” issuing 50-year bonds as soon as next year as it seeks cheaper ways to finance its massive debt load.

Last month, it wasreportedthat the Treasury Department was contemplating not just issuing 50-year bonds, but 100-year notes as well. Ultra-long bonds are becoming a “dangerous temptation,”accordingto Bloomberg, given how well Austria’s century debt has performed.

Mnuchin said no decision on ultra-long bonds has been made, though demand for such obligations is said to be rising.

“This is something I have talked about over the last two years, it is something we are very seriously considering,” hesaidon CNBC’s “Squawk Box.” “We’re looking at issuing a 50-year bond, what we could call an ultra-long bond. We think there is some demand for it. It is something we’ll very seriously consider for next year.”

Core Inflation Rises

U.S. core CPI rises faster than expected in August as medical costs surge. | Image: Shutterstock

A closely-watched measure of consumer inflation rose faster than expected in August, leading to the largest annual increase in a year.